Multiple Choice Questions

The average of 50 numbers is 38 If two numbers namely 45 and 55 are discarded the average of the rem...........

Quantitative Aptitude (Phase-1) Average

The average of 50 numbers is 38. If two numbers, namely 45 and 55 are discarded, the average of the remaining numbers is ?

36.5

36.8

38.6

37.5

Avg for 50 numbers is 38. the total is 38x50= 1900
the total of discarded numbers is 45+55=100.

the total for 48 numbers is 1900-100=1800.
the new average is 1800 / 48= 37.5

Hence, option 4 is the correct answer.

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